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tankabanditka [31]
3 years ago
10

If i have 20 cookies and i take 10 away, how much do i have left

Mathematics
2 answers:
pentagon [3]3 years ago
8 0

Answer:

10

Step-by-step explanation:

20 - 10 = 10

aivan3 [116]3 years ago
6 0

Answer:

you still have 20 because they are your cookies if i had 20 and you took  10 away it would be tend but since your taking your own cookies its 20 unless you eat them

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Answer:

No, she is not correct, this is a proportional relationship.

Step-by-step explanation:

Proportional relationships are relationships with equal ratios

column 1               column 2           column 2/column1

   'x'                            'y'          

    1                             5                               5

    2                            10                              5

    5                            25                             5

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As we clearly see that ratio of column 2 and column 1 is same for every row

Therefore, the given relation is proportional.

learn more about proportional relations at  

brainly.com/question/14626971

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6 0
1 year ago
The lengths of 3-inch nails manufactured on a machine are normally distributed with a mean of 3.0 inches and a standard deviatio
otez555 [7]

Using the normal distribution, it is found that 2.64% of all the nails produced by this machine are unusable.

In a <em>normal distribution</em> with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.  
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In this problem:

  • The mean is of 3 inches, hence \mu = 3.
  • The standard deviation is of 0.009 inches, hence \sigma = 0.009.

Nails that are <u>more than 0.02 inches</u> from the mean are unusable, hence:

Z = \frac{0.02}{\sigma}

Z = \frac{0.02}{0.009}

Z = 2.22

The proportion is P(|Z| > 2.22), which is <u>2 multiplied by the p-value of Z = -2.22</u>.

Z = -2.22 has a p-value of 0.0132.

2 x 0.0132 = 0.0264

0.0264 x 100% = 2.64%

2.64% of all the nails produced by this machine are unusable.

You can learn more about the normal distribution at brainly.com/question/24663213

7 0
2 years ago
How young am I if you get it right I will mark you Brainliest
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Answer:

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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